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Figure 2. Types of electoral systems (in the last election, 2022 or before). Data for 218 countries and territories [9].

Figure 3. Distribution of votes and the winner when voting under the majority system of simple majority.

Figure 4. Distribution of electorate and the winner in a situation where the winner is the candidate who won in most constituencies.

Figure 5. "Gerrymandering" is a manipulation of constituency boundaries, which leads to the victory of the «red» candidate in a situation where the winner of the election is the one who won in most districts. As before, there are ten people in each constituency, but now the «blue» candidate has a majority only in two districts but the «red» one has a majority in three districts, so the «red» candidate wins.

Figure 6. "Gerrymander" caricature [11].

Figure 7. Voter turnout in the last (2022 or earlier) parliamentary election. Data for 201 countries and territories [16].

Figure 8. Voter turnout in the last (2022 or earlier) presidential election. Data for 114 countries and territories [16].